Guide vane



June 2, 1925.

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June 2, 1925. 4 1,540,423

P. J. REES GUIDE VANE Filed April 21, 1924 2 Sheets-Sheet 2 amen Com @am @W 851,; v

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Patented June 2, 1925.

PAUL J. nuns, or Yonir. rnnnsvnvnnra, nssroivon or ONE-HALF GIBBS, orroan, rnnn-svnvnma;

ravens" arms.

GUIDE VANE.

To all whom it may conccmt:

Be it known that I, PAUL J. Runs, a citizen of the United States ofAmerica, residing at York, in the county of York and State ofPennsylvania, have invented certain new and useful Improvements in GuideVanes, of which the following is a specification.

My invention relates to improvements in the construction of turbinewicket gate mechanisms and especially to improvements in guide vanes. IV i Heretofore it has been customary to form these guide vanes or wicketgates of cast metal which has many disadvantages Attempts have'beenmadet to form these vanes of sheet or wrought metal but in order to makethe vanes of sufficient strength and rigidity, the construction wassocomplicated as to increase the cost and labor of man ufacture.

An important object of my'invention is to provide a device of thischaracter which will be formed of sheet or wrought metaland 'which willbe of strong construction and yet will be cheap and convenient tomanufacture.

Another object of my invention is to provide a method of constructingguide vanes of this character which will be simple and inexpensive butwhich will produce a vane of strong and durable formation.

Other objects and advantages of the invention will be apparent duringthe course of the following description.

In the accompanying drawings which form a part of this specification andwherein like characters of reference designate like parts throughout thesame:

Figure 1 is a perspective View of my improved guide vane,

Figure 2 is a transverse section on the line 2-2 of Figure 1, c

Figure 3 is a perspective view of the guide vane during itsconstruction,

Figure 4 is an end elevation of the same,

Figure 5 is a perspective view of amodification,

Figure 6 is a side elevation thereof, and

Figure 7 is an end view of the same.

In the drawings, wherein for the purpose of illustration is shown apreferred embodiment of my inventlon, the numeral 5 designates the stemof the vane which is preferably formed of'round bar stock. The two platesections 6 and 7 have their ends bevelled at 8, and the upper section 6is bent upon itself into a substantially V-shaped formation. The lowersection 7 is bent upon itself into a substantially V-shaped formationand the stem 5 is adapted to be arranged between the two sections. Theinner portions ofthe bevelled ends of the two sections 6 and 7 areadapted to contact with the stem 5; The space between the insideportions of the bevelled edges is slightly less than the diameter of thestem, but a straight line AA connecting the outside edges of the platesections will be approximately tangent to the stem, as seen in Figure l.

The straight line A-A forms, with the bevellededge of the plate sectionand the portion CE of the stem, an approximate triangle, therebeingfourof such triangles. These spaces or triangles are filled in byautogenous welding, or fusion of metal as shown at 9. These four spacesor triangles run longitudinally along the stem. and when filled byfusion of metal, the guide vane becomes a complete unit without seams,rivets or screws. Although the drawing shows the welding asvseparatefrom the plate sections T0 EUGENE" u.

and stem, this is only for purposes of illustration, and the entirestructure, in reality, becomes a single unit; I

The portion CE of the stem forms with the bevelled edge 8 of the plate asuitable V for welding without any additional labor cost and the weldingis on straight longitudinal lines and can be done with the automatictype of electric welder, which is rapid and eflicient. The welding hassufficient contact with the edges of the plates and with the stemsurface to insure ample strength.

The plate sections are easily formed and as the stem is made from asawed olf length of bar stock, it requires no forging or machining toadapt it to its location between the two plate sections. Itwill readilybe appreciatedthat thisis a decided advantage from the point of costover a stem which stem 14 and these bearings are arranged at The numeral10 designates the two bearings formed from short lengths of round barstock with holes 11 drilled through their centers for the reception ofthe stationary each end of the plate sections These bearings are securedto the plate sections in the same manner as the stem in the preferredembodiment of my invention, but the bevelled edges 12 of the platesections only extend the length of the bearings. The two plate sectionshave their edges between the bearings, meet and these meeting'edges arealsobevelled at 13 and this seam is welded on both sides.

' The lower end of the vane is offset at 15 and a steel block 16' issecured to this end by welding in openings 17 in the plate sections.This block is provided with an opening 18 to which the actuating link 19is secured by means of the pin 20. I

While I have shown and described the preferred embodiment of myinvention, it'is t0 be understood that various changes in shape, sizeand arrangement of parts may be resorted to without departing from thespirit of my invention orthe scope of the subjoined claims. 1

Having described my invention what I claim and desireto protect: byLetters Patent is: i

1. A guide vane comprising two plate sections bent to form substantiallyV-shapes,

a stem arranged between the platesections and welded to the endsthereof.

2. A guide vane comprising a plate section having bevelled ec ges, saidplate section being bent into substantially V-shape, a stem adapted tocontact withthe bevelled edges of the plate section and welded thereto.

3. A guide vane comprising two plate sections having bevelled edges,said plate sections being bent into substantially V-shapes, a stemarranged between the plate sections and contacting with the bevellededges of the sections, the angles formed by the bevelled edges and thesurface of the stem being'filled with autogenous welding.

.4. A guide vane comprising two sheet metal sections, and a stemarranged therebetween and welded to the ends thereof.

5. A guide. vane comprising two plate sections having their edgesbevelled, said plate sections being bent into substantially V-shapes, astem arranged between the plate sections and contacting with thebevelled edges thereof, whereby a line drawn through the outer points ofthe" plate sections will be approximately tangent to the stem, thelongitudinally extending angles formed by the bevelled'edges of theplate sections and the surface of the stem being filled with autogenouswelding.

6. A guide vane comprising two plate sections bent to form substantiallyV-shapes, and a stem arrangedbetween the ends of the plate. sections andsecured thereto.

In testimony whereof I afl ix my signature.

I PAUL J. REES.

